Apparatus for burning liquid fuel.



and Commonwealth, have inyentefl a new applieri-in the present, instance for-the pur.- 1

of a portion ofthe apparatus for regulating f ated by the burner; for oontrollin die coinboiler, not shown, and having a passage 2 eine "sinus,

i To :zii 'whom :it may concern Y.' Be it known that we, Winner.; E. (Einem, a 'ciiizen ci the Unite@ Sta-ies, residing at 'llbuiy, in the Acounty of Worcesier an Commonwealth of Massechuseits, and EVE.- Lmi wie Pnn'rnoer, a citizen of the United Stages, residing ai; lfiforcester, in saiclcounty in aransverse sectional` View in Figi a ,triangular in cross secion, having its ol, ique sides 7, 7, inclosing a Wide obtuse angle, preferably of i200 to M0, in order iliat a slight -rariation in the depth of the liquici fuel may produce a relatiyely`large increase in the exposed surface of the fuel. recess or well 8 is preferably formed in the boitom of the pan into which is conduced a fuel'supply pipe 9 leerling from a n, fuel inni; i() which communicates by a pipe il with s second fuel tank i2, said tanks l0 l and 12 being sho-Wn .on e, larger scale in secstealm boilerv urnaee equipped 1alfitln our im lonai View in Fig. 2. The fuel tank 12 is proved apparatus for burning ,liquid iuel, jsuppliedsviziiliouid ineLsucli as heavy ininand useful Improvement in .Apparatus for Burning Liq'iii Fuel, of wlncii he following is a speczoation' accompanieclc by flrawings, forming a parto the same, 1n which" Figure i represents a side elevation of a poseof heating the steam boiler'. Fig. 2 is a l side View on 'a iarger sea-ie., shown in section,

leads irom a source of fuel supply, such as an oyeriieaii tank, imm which oil flows by gravity into the tank 12, and is controlled nl .efhn un l' oy a Vi. we 1 w ion is autoniamcaiiy opeiae as hereinaner describefl.

the ow of liquid inel so ille burner.

Similar reference ciiaraciers refer ic similar parte in'tne dil'ereni figures.

Qur present invenion relates to thai: class of apparatus for burning liqui' -ine-i, in which are proviefl open pans in which fuel is burned and' over which curren's of air pass lcarrying the laine snai heate air wherever if: is desired to appl; die heat gein anli 'i8 and from the tanli' l0 ilirougli the eiated oy the burning liqul, uei. in in@ pipe S into Aille fuel pan -iie cil line being application of our apparatus @ne pans in up n ine-same horizontal llezfei in all. tliree which the fuel is supplied. io eeci the flames may be pla-ceri in proper position to conclusi the currents of 'heated air througlithe iiues of a boiler or into the heating chamber of a furnace for melting meiai.

The 'objects of our invenion are to pro rifle means for rietermining the hea-: gener eceptacles, The exposed surfacei of ihe cil lin che fuel pan e is ignited, the hinged door 16 is opened to admit air io support combustion, an -iie heated air and fiame pass in a current induced oy tliegrafr of a sacl, not shown, ilirougn passage 2 the direction of che arrows. proci- Vnets ci combusiion passing :from elleV uef pan 4 form a gaseous uel which is stiil fureher mixed with air in the combustion chanber i?, a supply oi' air ileing admitted there* bustion; and for increasing the e eiency the burner by controlling the relative snp# ply oi hydrocarbon and oxygen.

TVe accomplish the above objects by the construction and arrangemeni oi parts as hereinafter described and poinicd out in the annexed claims.

Referring to the accompanying drawings l denotes the brick wall inclosing a. steam 'hinged door 19.k The'iiated'current'pass ing from the fuei pan ini-o 'the combustion chamber strikes against ibs op losing oblique yall Q0 which serves' as a ba e for the curreni and directs it downward towardV the passage 2. The` return or eddying, movement of Ithe current through the combustion chamber 17 facilitates the adinixture oi' air enering ihrougli the passage i8, thereby securing a more periect combustion of die hydrocarbon carried from the fuel pan el and prevening the undue deposit of soot,

for the admission ,of heated air and iiames from e. fuel pan 4 in the direction of lie arrows 5. The fuel pan 4 consists of a cast iron pen built into the en@ Wall G ci the steam boiler furnace and extending fransversely across the front. The fuel pan y eral oilbrougii a suppiy pipe i3 which io through the'passage ulhynopeningthe,

The nel tanks ilancl 12 are supported in It has been cui-:toii'iary heretofore to control the passage otl air across the Isurface of the liquid fuel and also to control the adniission of air to the combustion chamber. Ve secure an improved combustion, however, by a more intimate admixtiirc of the oxygen and hydrocarbon .in the current of gaseous 't'uel by ine-ans of the inclined wall 2t), and we also secure a better combustion by directing the flow of air over the liquid fuel in a downward direction, by meansot a baille-plate 2l, which is placed above the fuel pan 4 and at, an oblique angle to the horizontal plane of the fuel, so that air passing over the Juel pan will be deflected downward as indicated by the arrow 2i, and

caused to impinge vagainst the sheet of gaseous fuel produced from the burning fuel.l live thus not only control the supply of oxygen and secure its intimate adiiiixtiire with the gaseous fuel, but we further control the supply of hydivicarbon, which we accomplish by varying the exposed surface of the liquid fuel in the fuel pan 4.

ln order to vary the relative proportions of oxygen and hydrocarbon it has been customary to vary the air supply, thereby increasing or decreasing the proportion of oxygen relatively to the supply ot hydrocarv hon in the current of gaseous t'iiel. lVliile the method commonly practised may prove etlicicnt under some conditions, we have found it to be of great advantage to place both the exyge-nand liydrocarl'ion supplies under immediate control either ot the operator or aut'oiinitically. ln case the fuel supply is to be controlled by the operator it may lie accomplished by the use of a hand valve 23 placed in the 't'uel supply pipe t), which may be so adjusted as-to regulate the `supply oi oil relatively to its consumption so as to maintain a predetermined level in the fuel pan 4. A slightI variation in the depth ot the fuel in the pan 4 will produce a considerable variation in the area ot its exposed siirtiice owing to the wide angle inelosed between the oblique sides 7. 7, ot' the fuel pan. Under some conditions of use the control of the valve Q3 by the operator may prove slitticicnt to regulate the hydrocarbon supply, biit,.we provide an apparatus by which the depth ott oil in the tuel pan -t will be autoiiia t'ically regulated, the operat ion of thc alitoiiiatic.apparat-usbeingcontrolled bythe quantity ot' heaty develope'd'hy the burning fuel. 'llie quant ity ot heat, developed may be indicated by any suitable apparatus by which' li'eat may be translated into a mechanical niovem/eiit, such t'or example, as a tliei'iiiostat steam pri-saure diaphragm, or the like.

lii the present ini-tance we connect the boiler which is heated -by the burning l'ucl through a .steam pipe l with a casing 25, containing thtl usual. vsteam. pressure diaphragm, willi a spin'lle t supported thereon and bearing against a lever 27 pivoted at'V pressure ot' steam admitted to the casing 25 i through the steam pipe 24. Pivotally connected to the lever 30 is a'vz'ilvegstiein 34 which controls the How of water under prcssi'ire through a pipe 35 into a piston equipped cylinder 36, carrying a piston stein 37 pivotally connected with a level-3S, which is pivoted at one end at 39, and also pivotally connected at 40 with a link 41`-l connected at its lower end with a plunger 42. Pivotally connected with the plunger 42 by a link '43 is a short arm 44 of a bell crank pivoted at 45 and having its long v-arni 46 connected by a; link 47 with asliding weight 48. The weight 48 is carried upon a beam 49 which is connected by a link 50 with a leverl, pivoted at one end at 52 withinthe 'tank 12 and carrying upon its free end a float, 53 in the tank 12. The beam 49 which carries the sliding weight 4S is pivoted at 54 upon a bracket 55, and the end of the beam 49 is connected by a link 56 with a lever 57, pivotally attached to a. bracket- 58 projecting from the casing of the valve 14.

The lever 57 is provided with a stud 59 which works ina slot 60 of asliding valve piston 61.- As the lever 57 yis laised by the upward movement of the beam'tt) the valve piston Gl is pushed inwardly to close the' passage through the supply pipe 13, and a downward movement of the lever 57 reverses'v the valve piston G1 and opens thev supplyv pipe 13 to allow oil to low into the tank lf2.

The reciprocating movement of the lever 5T is caused by,a'ifeciprocation ot the beam 49 on its pivot'-t, whichis produced by sliding the Weight 48 to one side or the other of the pivot 54, which is accomplished by a swinging movementv of the aririsj-t-tand 46 of the bell crank.' The bell crank is oscillated through its connection with the swinging lever 38 which isactiiated by the rising and falling movement. o the piston con-y tained in the cylinder 3G,- as water under pressure is admitted above or below the piston by the movement. of the valve stem 34.

As the pressure of steam in the boiler raises I right hand end ot' the beam, partially closing the valve 14 and permitting the float, 53 to rise. 'Ihe flow o t oil is therebychecked until the steam pressure is reduced, allowing 35 whicli will be Well understood 45 lowing through ille pino .s

ds-38, and' li mosey? the Weights on the lever 2T to depress the valve stein 34 to admit woer above the piston in the cylinder 36, to depress the lever 3B.

The downward movement o die lever 38 sinlis the plunger @into the 'tank l0, and

swings the bell crenl to move the Weight' 48 to 1the right o 'die sivo-t 54: on die beam 49. The shifting of *die Weight 48 depressies the .float 53 `into *die tank lf also moves 'the valve piston 6l to open the supply pipe 13 and admit sn increased dos' oi oil to the tank 12./ Tlieee of the depression oi' *die plunger 42 and loet- 53 inio 'lie oil in ne tanks/10 ind l2 is to reise the oil line, onlg,1 in ille ranks but also in Ll. f/he rising of the oil line pon increases lie ores of oil surface ex posed, consequently ino easing the suply hydrocarbon. To lliy free end of the lei7 88,`\ve connect the hinged doors l@ and by chains 52 and (33, and iniernvdiee lever G4, having e series o rieles for the et taolirnent of seid chains by which theonovements of Jdie doors 16 and l) relatively to 25 tlie lever 3S may be varied.

That part of the above described appa ratus, comprising the easing 25', weigh' l levers 27 ond, pi n equipped oylii 3G with the Valve conrolled Water passages,

3@ and lever 38, with eonneotions to oir drefi closing devices, :forms no part oiE our present invention, as it constitutes the well known Spencer automatic. domper regulator. the constrnorion and operoion or" by liose oonversant with the Control of steam boilers and furnaces.

The operation oionr apparatus is as follows: Assuming the boiler to be sold7 the 40 free end oflever 38 will oe depressed end f2 and float in their lowest 13o-sillons. Oil is ordinii-toil through the snpply pipe''l'l to the ranks 15E and 1G, submerging the {lontsnd *die plunger 4Q, and A Sinto lle fuel isn el, in which the oil lin israised'sulisrentinlly to lie lop tlze p- The hinged doors 1G and 19 being pressed end of the le"4 tlte plunger ion chamber l? to support combustion, maximum supply of liydrocerbon'beinY urnisliod owing so the ,large are@ of `oil snriaee exposed. The

Sfiinsxiniuineinount oi: liess will be generated until steam==pressnre is produced snflieiens to mise theV lever QTimd oonneoed valve stein 3,4-, lliereli; .mlmislingg 'water below' tile piston in the ovlindorl, which raises the lever die plunger L1li-3 'within the mail; 110. Afs ille plunger "immediately falls lioli in the -t-snl: l0 and `:,llsosin the tenis ed fuel non 4. rElie fell ofc'lhe oil line'ii *die 'Enel non decreases 565 aree of exposed surface owing 'o the rinnlifted elle oilline iinne opening elle miv-e ille geler cross sectional shape of the pan., thereby decreasing the snoigly of hydrocarbon entering into t'rey .commission of gaseous fuel. changehowever, in reducing the steam pressure permise the Weights 3l, 32 and 33 io depress 'the valve 3e and edmit Water shove ilse piston in die o vlinder 3G, and one lever 3S vis again depresse causingl the doors i6 and if) to be opened wider; elle plunger and 'doelt to be lowered ino iie oil in 'elle tanks l@ and l2 and lie'oil Eine raised in 'the n 4 et die seme s increasing supply pipe 13 e l eoinbnstion, which pressure again llieiiow of oil through sli sfppor *die incres nes uni-il *die resones die desired point. The depression of the lever also snts the Weighs 48 to hand side of 'die pivot 54, and the falling dost 53 operate to lve or" lle oil supply y willi elle 'Inovenged doors 1 6 and liereoy increasing lever die hinged doors i6 l) will lie suiqioen enable eoinplee control of bot-l. oxygen and hydrocarbon supplied to gaseous fuel to maintain any desired pressure of steen By a control of lie supply of: hydrocarbon We obtain u clean liot fiume Without -tlie for'- inoion of soot., which would clog the line passages, and coat ille ilue linings, thereby impeding the' transmission of liest `We also i'nrlior regulate the mixture of oxygen by en edjustmens of the baille-plate 21, which .is ooeomplislied-liy liinging the baille-pluie 21 si its inner edge et. G5 and c-onneosing its irons oy elia-Ins 6o with die le'verG/l. As the lever @-1 drops in response to en increase in the sieurs pressure, L"

fie door JE will descend and restrict the passage for the odin sion. oi air and die 4'mille-olmo Zi will li ewise lie lowered, @Trying 'the diminished :air onrens closer to the surf ce of liquidinel in the pon lie claim,

An opgere'ns lor burning llqnid fool Comprising; n in srnotnre moving; n

front Wally in which nre loon-ted :in open 'fuel pen and snpplernensry air nnssege limrv ing a damper for op' nog; and closing the j laer, andlisving i'fornied lm'cl; seid pon and supple-menta ir sage :i combustion chamber, lie u opposite said pen and nir passo u olirle., serving 0 r: passage. for Jlie admission or .e r. z a f 'g naine 1.10m lne ne p Tinnitus or the class described, vi i p quid inel, :in iur passage over sind gran, means for (for ,olmgj the quantity an open fuel pan triangular in cross seetion, a combustion chamber, an air passage over the top into said combustion chamber, means for controlling the supply of air to said passage, and means for simultaneously varying the supply of hydrocarbon to the air current, comprising means for automatically raising `the fuel level in the fuel pan.

4. In an apparatus of the class descrlbed, an open fuel pan triangular in cross section, a fuel tank arranged on a level With the fuel pan, a pipe connecting' said tank and fuel pan, a plunger inclosed in said tank, and

means for raising and lowering said plunger to vary the fuel level 1n said fuel pan.

5. In an apparatus .of the class described,

an open tuel pan, means for automatically varying the level of the fuel in saidpan, a

passage for an air current across the top of said pan, an vadjustable battle plate above said pan, and. means for automatically varyingl vthe position of said baille plate corre spending with the variation in the level of thefuel in said fuel pany 6. In an apparatus of the class describe( i an open Afuel pan, a.. passage for air across the top of said pan, a hinged door for loontrolling said passage and a hinged balHeplate above said pan, and means for. simultaneously moving said door and said batleplate.v

Dated this seventeenth day of December 1909.

WILLIAM OAKLEY. WILLIAM A. PENTECOST.

Witnesses:f PENELOPE CoMBnRBAoI-, NELLIEK lVHALnN. 

